1312232103031 has 4 divisors (see below), whose sum is σ = 1369285672752. Its totient is φ = 1255178533312.

The previous prime is 1312232102989. The next prime is 1312232103101. The reversal of 1312232103031 is 1303012322131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312232103031 - 2³⁵ = 1277872364663 is a prime.

It is a super-2 number, since 2×1312232103031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312232102993 and 1312232103011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312232103731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28526784826 + ... + 28526784871.

It is an arithmetic number, because the mean of its divisors is an integer number (342321418188).

Almost surely, 2^{1312232103031} is an apocalyptic number.

1312232103031 is a deficient number, since it is larger than the sum of its proper divisors (57053569721).

1312232103031 is an equidigital number, since it uses as much as digits as its factorization.

1312232103031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57053569720.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1312232103031 its reverse (1303012322131), we get a palindrome (2615244425162).

The spelling of 1312232103031 in words is "one trillion, three hundred twelve billion, two hundred thirty-two million, one hundred three thousand, thirty-one".